I wish I could thank the previous post twice.
Revisiting
this report now because my CA emissions test is in August and the rules are stricter this time... I take the conclusions reported on p.197 to mean I'll get best results will come from a 2 hour soak at maybe 130* F (~50*C) with a steady, slow flow through the catalyst. For me that might mean a big pot, a thermometer, my BBQ grill, and a big spoon to stir! Thoughts? I'll buy a new CAT if this effort fails, but it seems greener and cheaper to source some Citric Acid from a farm supply or wine supply place and try this first...